pycharm爱心代码

import random
from math import sin, cos, pi, log
from tkinter import *

CANVAS_WIDTH = 640 # 画布的宽
CANVAS_HEIGHT = 480 # 画布的高
CANVAS_CENTER_X = CANVAS_WIDTH / 2 # 画布中心的X轴坐标
CANVAS_CENTER_Y = CANVAS_HEIGHT / 2 # 画布中心的Y轴坐标
IMAGE_ENLARGE = 11 # 放大比例
HEART_COLOR = "#ff2121" # 心的颜色，这个是中国红

def heart_function(t, shrink_ratio: float = IMAGE_ENLARGE):
"""
“爱心函数生成器”
:param shrink_ratio: 放大比例
:param t: 参数
:return: 坐标
"""
# 基础函数
x = 16 * (sin(t) ** 3)
y = -(13 * cos(t) - 5 * cos(2 * t) - 2 * cos(3 * t) - cos(4 * t))

# 放大
 x *= shrink_ratio
 y *= shrink_ratio

# 移到画布中央
 x += CANVAS_CENTER_X
 y += CANVAS_CENTER_Y

return int(x), int(y)

def scatter_inside(x, y, beta=0.15):
"""
随机内部扩散
:param x: 原x
:param y: 原y
:param beta: 强度
:return: 新坐标
"""
ratio_x = - beta * log(random.random())
ratio_y = - beta * log(random.random())

dx = ratio_x * (x - CANVAS_CENTER_X)
 dy = ratio_y * (y - CANVAS_CENTER_Y)

return x - dx, y - dy

def shrink(x, y, ratio):
"""
抖动
:param x: 原x
:param y: 原y
:param ratio: 比例
:return: 新坐标
"""
force = -1 / (((x - CANVAS_CENTER_X) ** 2 + (y - CANVAS_CENTER_Y) ** 2) ** 0.6) # 这个参数...
dx = ratio * force * (x - CANVAS_CENTER_X)
dy = ratio * force * (y - CANVAS_CENTER_Y)
return x - dx, y - dy

def curve(p):
"""
自定义曲线函数，调整跳动周期
:param p: 参数
:return: 正弦
"""
# 可以尝试换其他的动态函数，达到更有力量的效果（贝塞尔？）
return 2 * (2 * sin(4 * p)) / (2 * pi)

class Heart:
"""
爱心类
"""

def __init__(self, generate_frame=20):
     self._points = set()  # 原始爱心坐标集合
     self._edge_diffusion_points = set()  # 边缘扩散效果点坐标集合
     self._center_diffusion_points = set()  # 中心扩散效果点坐标集合
     self.all_points = {}  # 每帧动态点坐标
     self.build(2000)

    self.random_halo = 1000

    self.generate_frame = generate_frame
     for frame in range(generate_frame):
         self.calc(frame)

def build(self, number):
     # 爱心
     for _ in range(number):
         t = random.uniform(0, 2 * pi)  # 随机不到的地方造成爱心有缺口
         x, y = heart_function(t)
         self._points.add((x, y))

    # 爱心内扩散
     for _x, _y in list(self._points):
         for _ in range(3):
             x, y = scatter_inside(_x, _y, 0.05)
             self._edge_diffusion_points.add((x, y))

    # 爱心内再次扩散
     point_list = list(self._points)
     for _ in range(4000):
         x, y = random.choice(point_list)
         x, y = scatter_inside(x, y, 0.17)
         self._center_diffusion_points.add((x, y))

@staticmethod
 def calc_position(x, y, ratio):
     # 调整缩放比例
     force = 1 / (((x - CANVAS_CENTER_X) ** 2 + (y - CANVAS_CENTER_Y) ** 2) ** 0.520)  # 魔法参数

    dx = ratio * force * (x - CANVAS_CENTER_X) + random.randint(-1, 1)
     dy = ratio * force * (y - CANVAS_CENTER_Y) + random.randint(-1, 1)

    return x - dx, y - dy

def calc(self, generate_frame):
     ratio = 10 * curve(generate_frame / 10 * pi)  # 圆滑的周期的缩放比例

    halo_radius = int(4 + 6 * (1 + curve(generate_frame / 10 * pi)))
     halo_number = int(3000 + 4000 * abs(curve(generate_frame / 10 * pi) ** 2))

    all_points = []

    # 光环
     heart_halo_point = set()  # 光环的点坐标集合
     for _ in range(halo_number):
         t = random.uniform(0, 2 * pi)  # 随机不到的地方造成爱心有缺口
         x, y = heart_function(t, shrink_ratio=11.6)  # 魔法参数
         x, y = shrink(x, y, halo_radius)
         if (x, y) not in heart_halo_point:
             # 处理新的点
             heart_halo_point.add((x, y))
             x += random.randint(-14, 14)
             y += random.randint(-14, 14)
             size = random.choice((1, 2, 2))
             all_points.append((x, y, size))

    # 轮廓
     for x, y in self._points:
         x, y = self.calc_position(x, y, ratio)
         size = random.randint(1, 3)
         all_points.append((x, y, size))

    # 内容
     for x, y in self._edge_diffusion_points:
         x, y = self.calc_position(x, y, ratio)
         size = random.randint(1, 2)
         all_points.append((x, y, size))

    for x, y in self._center_diffusion_points:
         x, y = self.calc_position(x, y, ratio)
         size = random.randint(1, 2)
         all_points.append((x, y, size))

    self.all_points[generate_frame] = all_points

def render(self, render_canvas, render_frame):
     for x, y, size in self.all_points[render_frame % self.generate_frame]:
         render_canvas.create_rectangle(x, y, x + size, y + size, width=0, fill=HEART_COLOR)

def draw(main: Tk, render_canvas: Canvas, render_heart: Heart, render_frame=0):
render_canvas.delete('all')
render_heart.render(render_canvas, render_frame)
main.after(160, draw, main, render_canvas, render_heart, render_frame + 1)

if name == 'main':
root = Tk() # 一个Tk
canvas = Canvas(root, bg='black', height=CANVAS_HEIGHT, width=CANVAS_WIDTH)
canvas.pack()
heart = Heart() # 心
draw(root, canvas, heart) # 开始画画~
root.mainloop()